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<title>NAS - Normbasierte AustauschSchnittstelle</title>
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<h1>NAS - ALKIS</h1>

The NAS reader reads the NAS/ALKIS format used for cadastral data in Germany.
The format is a GML profile with fairly complex GML3 objects not easily read
with the general OGR GML driver. <p>

This driver depends on GDAL/OGR being built with the Xerces XML parsing
library.<p>

This driver was implemented within the context of the PostNAS project
which has more information on it's use.<p>

The driver looks for "opengis.net/gml" and one of the strings semicolon
separated strings listed in the option NAS_INDICATOR (which defaults to
"NAS-Operationen.xsd;NAS-Operationen_optional.xsd;AAA-Fachschema.xsd") to
determine if a input is a NAS file and ignores all files without any matches.

<h2>See Also</h2>

<ul>
<li> <a href="http://trac.wheregroup.com/PostNAS">PostNAS</a>
<li> <a href="http://www.norbit.de/68/">norGIS ALKIS-Import</a>
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